Join us for guest speaker Heather Holm's virtual presentation as she highlights many amazing natural history and biology facts about native wasps illustrating their nesting habitat, prey specificity, and the ecosystems services they provide—pest insect population control and pollination. (Full details about the topic and speaker at https://ottawahort.org/.../native-predatory-wasps-their.../) This will be a virtual presentation on […]

Jumping worms are an emerging conservation threat in Ontario, capable of damaging lawns, landscapes and forest habitat. In this talk we'll hear about impacts and invasion history of earthworms, and jumping worms in particular, as well as how to identify jumping worms. Speaker Dr. Annise Dobson currently researches jumping worms at the Yale School of […]

The OHS’s own Tina Liu happens to also be the National Capital Commission’s in-house landscape architect. The annual design of the NCC’s Capital Floral Program uses 250k annual plants of over 200 varieties every year. Tina will talk about the process of plant selection, and how new hybrids are introduced and incorporated into the design. […]